#!/bin/sh
# Make sure chmod mode arguments of the form A=B work properly.
# Before fileutils-4.1.2, some of them didn't.
# Also, before coreutils-5.3.1, =[ugo] sometimes didn't work.

# Copyright (C) 2001, 2002, 2004, 2005, 2006 Free Software Foundation,
# Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

if test "$VERBOSE" = yes; then
  set -x
  chmod --version
fi

pwd=`pwd`
tmp=equals.$$
trap 'status=$?; cd "$pwd" && rm -rf $tmp && exit $status' 0
trap '(exit $?); exit' 1 2 13 15

framework_failure=0
mkdir $tmp || framework_failure=1
cd $tmp || framework_failure=1
touch f || framework_failure=1

if test $framework_failure = 1; then
  echo "$0: failure in testing framework" 1>&2
  (exit 1); exit 1
fi

fail=0

expected_u=-rwx------
expected_g=----rwx---
expected_o=-------rwx

for src in u g o; do
  for dest in u g o; do
    test $dest = $src && continue
    chmod a=,$src=rwx,$dest=$src,$src= f || fail=1
    set _ `ls -l f`; shift; actual_perms=$1
    expected_perms=`eval 'echo \$expected_'$dest`
    test "$actual_perms" = "$expected_perms" || fail=1
  done
done

umask 027
chmod a=,u=rwx,=u f || fail=1
set _ `ls -l f`; shift; actual_perms=$1
test "$actual_perms" = "-rwxr-x---" || fail=1

(exit $fail); exit $fail
